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Unilock Construction in Colma, CA | Ashford Contractors
We install and repair Unilock paver and wall systems across Colma, and the work here is unlike our Unilock service in South San Francisco or elsewhere in San Mateo County. Almost every Unilock project in this town sits on cemetery-district property or a commercial strip along El Camino Real, not a residential backyard. That means every paver field, retaining wall, and service drive has to be laid out around grave markers, district easements, and a fog belt that keeps surfaces damp most of the year. Call (877) 752-3868 for a free estimate on new Unilock construction or repair work in Colma.
Why Colma Residents Choose Us for Unilock Service
We know Unilock systems down to the unit profile and joint aggregate, because we install and repair Brussels Block, Beacon Hill Flagstone, Pisa2, Senzo, and Eco-Priora on a regular basis. We also know what those systems do in Colma specifically. The fog here doesn’t lift the way it does with Unilock in Daly City or over the hill in San Mateo, and that changes how pavers drain, how bedding sand holds moisture, and how fast moss takes hold on a shaded mausoleum apron.
Glen Mossier, our owner, trained in construction technology at Skyline College in San Bruno and spent two decades framing and building across San Mateo County before building Ashford Contractors into a full-scope general contractor. He’s walked enough cemetery-district sites in Colma to know that the ground here has history under it, and that changes how you detail a base. We also run Unilock sales & service across the whole region, so we keep OEM-matched units and proper jointing aggregate in our local supply chain rather than guessing with generic block.
Styles & brands we work with
Common Unilock Construction Problems We Solve in Colma
- Permeable joints clogging with fines and moss. Eco-Priora and similar permeable systems rely on open joints to let water through. Colma’s fog keeps the surface damp for weeks and moss fills the voids before infiltration ever gets going. Cemetery walks and service drives start ponding, and the whole point of the permeable system is lost. We clean, re-open, and re-joint those systems properly.
- Efflorescence and salt bloom on grey and charcoal Brussels Block. North-facing mausoleum aprons and shaded El Camino Real frontage stay saturated, and minerals from the bedding sand and base wick up through the pavers. You see white, chalky staining that won’t rinse off. It’s a moisture-management issue, not a paver defect, and the fix starts with drainage, not acid washing alone.
- Base failure under vehicular loading at cemetery equipment crossings. When pavers go over a thin aggregate base or an old slab, the constantly wet subgrade pumps under truck and equipment traffic. Pavers rock, sink, and crack at the crossing. We rebuild those sections with a properly compacted structural base and Unilock-specified bedding.
- Wall block creep and cap separation on Pisa2 and Senzo retaining walls. Retaining walls against saturated soil without drainage behind them push forward over time. Moss hides the joint movement until a cap shifts or the batter goes out of line. By then the wall needs partial disassembly to add drainage and geogrid where the engineering was skipped.
- Drip-line heave and moss along building edges. Roof runoff off columbarium and mausoleum buildings concentrates along the paver border course. The base softens, pavers heave, and the drip line turns green. We re-grade for positive drainage away from crypt walls and re-lay the affected field with fresh bedding sand.
Unilock Service in Colma: What Local Conditions Mean for Your Equipment
Colma is zoned almost entirely for cemeteries. There are seventeen cemeteries here and more than a million buried residents, against a living population of only a few hundred. So when a Unilock paver field goes in, it’s usually on cemetery-district property: a columbarium court, a mausoleum apron, a service drive for grounds equipment. The layout has to work around grave markers, burial vaults, and district easements, not around a house. That single fact shapes everything on a Colma Unilock site. You can’t just run a string line and start laying. You have to survey existing plot markers, confirm the district’s property line, and set the border course so it respects the grave spacing. Our crews do that work before the first paver goes down.
On a columbarium courtyard project off El Camino Real, our crew pulled up a field of Brussels Block that had heaved and gone mossy along the drip line of the building, re-graded the base for positive drainage away from the crypt walls, and re-laid with fresh bedding sand and Unilock-matched joint aggregate. We reset the border course against the district’s marker line and left the owner with a court that sheds fog-season moisture instead of holding it. That’s the difference between a crew that’s done Colma before and one that hasn’t.
Unilock Models & Products We Service in Colma
We work with the full Unilock product range that actually shows up on Colma commercial and cemetery sites. Brussels Block is the tumbled concrete paver we see most often on walkways and courtyards. Beacon Hill Flagstone gets specified for larger mausoleum aprons and entry plazas where a flagstone look is wanted without the stone cost. Pisa2 and Senzo wall systems handle grade changes and planter walls. Eco-Priora goes in where the district wants a permeable surface for drainage compliance. We match Unilock’s own paver and wall units with their specified jointing and bedding aggregates, so the system performs as designed. Substitutes only come into play when a profile has been discontinued, and even then we match the profile and color as closely as the market allows. We also cover Colma service area jobs that combine Unilock with concrete, asphalt, or fence lines, so one contract handles the whole exterior.
See the difference
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AfterUnilock Service Pricing in Colma
What a Unilock job costs in Colma depends on access, the condition of the existing base, and whether we’re working around active grave sites. A full driveway replacement costs more than a fresh patio, and a permeable system that needs a stone recharge layer carries its own materials premium. Here are the line-item ranges we quote from:
| Scope | Typical Price Range |
|---|---|
| Paver Driveway Installation | $7000 – $18000 |
| Paver Patio Installation | $3500 – $11000 |
| Driveway Replacement | $5000 – $14000 |
A free estimate includes a site walk, base inspection, and a written line-item quote. We don’t give a number over the phone without seeing the ground, because Colma ground can hide old vaults, saturated subgrade, or a failed base someone covered up. Call (877) 752-3868 to schedule that walk.
Serving Colma, CA — Our Local Coverage Area
We’re based in the Colma area and know this community well, just as we know Unilock service in Broadmoor. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Unilock Construction in Colma
Yes. That’s most of what we do in Colma. The key is a compacted structural base thick enough for the load, with Unilock-specified bedding and jointing so the pavers don’t rock under trucks. A thin base over wet Colma subgrade will fail within a season. Call (877) 752-3868 and we’ll inspect the existing base before we quote it.
Colma’s fog keeps the paver surface damp, and those shaded commercial frontages along El Camino Real rarely see full sun. Moss colonizes the joints and the paver faces, especially on textured blocks like Brussels Block. The fix is a combination of drainage correction, joint re-sanding with the right aggregate, and a cleaning regimen that doesn’t rely on sun the site never gets.
Work stops. That’s a discovery you report to the cemetery district and the San Mateo County Coroner under state protocols, and no one on our crew touches the find. That’s one reason we survey property lines and existing burials before digging in Colma. You don’t open ground here casually. Call (877) 752-3868 before you schedule any excavation, and we’ll walk the site and check district records first.
We stock and specify Unilock units when the system is in production, because matching profile, color, and texture across a repair matters. If a profile has been discontinued, we’ll source the closest compatible unit and be upfront about the match. But for a new install or a repair on an active product line, Unilock is the setting spec, not a close-enough block.
In Colma, a permeable system only works if the joints stay open and the stone recharge layer is installed correctly. Fog-borne fines and moss will clog unmaintained joints within a year or two. We do recommend Eco-Priora where the district needs drainage compliance or runoff reduction, but we’re clear about the maintenance commitment. Call (877) 752-3868 and we’ll tell you honestly whether permeable is the right call for your specific site.
Service Areas Near Colma
Ashford Contractors runs Unilock work throughout the San Mateo County corridor and the coastside. We cover Unilock service in Moss Beach and Unilock service in Montara, plus Foster City, Redwood Shores, Belmont, San Mateo, San Carlos, and Highlands-Baywood Park. Same crews, same spec discipline, same Unilock products.
Book Your Unilock Service in Colma Today
Your project, not our portfolio. We’ll send a crew that’s done Colma before, and we’ll quote it line by line. Call Glen and the team at (877) 752-3868 to schedule your free Unilock construction estimate in Colma. Build it right the first time, and you won’t be rebuilding it in ten years.
Written by Glen Mossier, Owner at Ashford Contractors, serving Colma, Unilock in Pacifica, and the wider San Mateo County area.